Download Test Files: 1MB to 10GB

Download exact-size binary files from 1MB to 10GB for upload and download testing, API limits, bandwidth checks, and storage workflows. Each listed file is raw binary data served from the CDN.

Generate custom BIN fileCreate up to 1GB locally in your browser

test-1mb.bin

1 MB

Download

File details and verification

Filename: test-1mb.bin
Exact size: 1,048,576 bytes
Displayed size: 1 MB
Catalog status: Valid catalog fixture
SHA-256: a7fc76e5b7f6d9551e3658ca60aeb008238cbe3fea9cb2d17b52d049d297b50a
Header signature: Not applicable (no stable header signature for this format)
Verified on: 2026-08-10
MIME type: application/octet-stream
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/test/test-1mb.bin

See how TrueFileSize generates and measures sample files, or review the editorial policy.

test-5mb.bin

5 MB

Download

File details and verification

Filename: test-5mb.bin
Exact size: 5,242,880 bytes
Displayed size: 5 MB
Catalog status: Valid catalog fixture
SHA-256: 22bf07aae7e1ac15c10e69c3320d287c79efd7058ea03eda01271eaae7d14b92
Header signature: Not applicable (no stable header signature for this format)
Verified on: 2026-08-10
MIME type: application/octet-stream
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/test/test-5mb.bin

See how TrueFileSize generates and measures sample files, or review the editorial policy.

test-10mb.bin

10 MB

Download

File details and verification

Filename: test-10mb.bin
Exact size: 10,485,760 bytes
Displayed size: 10 MB
Catalog status: Valid catalog fixture
SHA-256: 7d04fde0818e71734edc44c306e1227e564f3e6d9b129df577066d677e5898a3
Header signature: Not applicable (no stable header signature for this format)
Verified on: 2026-08-10
MIME type: application/octet-stream
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/test/test-10mb.bin

See how TrueFileSize generates and measures sample files, or review the editorial policy.

test-50mb.bin

50 MB

Download

File details and verification

Filename: test-50mb.bin
Exact size: 52,428,800 bytes
Displayed size: 50 MB
Catalog status: Valid catalog fixture
SHA-256: 86ce11f277af3f983a0e356aa19735aca11b11294fb2beb4c5e52945ad06cee0
Header signature: Not applicable (no stable header signature for this format)
Verified on: 2026-08-10
MIME type: application/octet-stream
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/test/test-50mb.bin

See how TrueFileSize generates and measures sample files, or review the editorial policy.

test-100mb.bin

100 MB

Download

File details and verification

Filename: test-100mb.bin
Exact size: 104,857,600 bytes
Displayed size: 100 MB
Catalog status: Valid catalog fixture
SHA-256: 981f50f01d3cf8f48528f916391e9cb4d96203e21b7e633117283dfa442c242d
Header signature: Not applicable (no stable header signature for this format)
Verified on: 2026-08-10
MIME type: application/octet-stream
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/test/test-100mb.bin

See how TrueFileSize generates and measures sample files, or review the editorial policy.

test-200mb.bin

200 MB

Download

File details and verification

Filename: test-200mb.bin
Exact size: 209,715,200 bytes
Displayed size: 200 MB
Catalog status: Valid catalog fixture
SHA-256: aa0eb93157466e802e3313aa6e098121d31868be7cf7152bcfb3a5d1805cffd1
Header signature: Not applicable (no stable header signature for this format)
Verified on: 2026-08-10
MIME type: application/octet-stream
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/test/test-200mb.bin

See how TrueFileSize generates and measures sample files, or review the editorial policy.

test-500mb.bin

500 MB

Download

File details and verification

Filename: test-500mb.bin
Exact size: 524,288,000 bytes
Displayed size: 500 MB
Catalog status: Valid catalog fixture
SHA-256: 19a1b842611bcc8ccf4dc2ae057dc0119d946684a6b8ce9566f288ff841380c6
Header signature: Not applicable (no stable header signature for this format)
Verified on: 2026-08-10
MIME type: application/octet-stream
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/test/test-500mb.bin

See how TrueFileSize generates and measures sample files, or review the editorial policy.

test-1gb.bin

1 GB

Download

File details and verification

Filename: test-1gb.bin
Exact size: 1,073,741,824 bytes
Displayed size: 1 GB
Catalog status: Valid catalog fixture
SHA-256: 97a0e58f3b9bf452ee1e0e7867fc30efd8d6e0fd5cce93311a853d286c2e8cbd
Header signature: Not applicable (no stable header signature for this format)
Verified on: 2026-08-10
MIME type: application/octet-stream
License: CC0 / Public Domain
Download URL: https://cdn.truefilesize.com/test/test-1gb.bin

See how TrueFileSize generates and measures sample files, or review the editorial policy.

Which test file size should I use?

Size	Best for	Why
1MB	Smoke tests and quick upload validation	Fast enough to run in every PR
100MB	Progress bars and CDN download checks	A stable size for repeatable transfer tests
500MB	Timeout and storage-limit checks	Exercises sustained transfers without a full 1GB payload
1GB	Chunked upload and resume workflows	Exercises timeouts, storage, and retry logic
10GB	Infrastructure stress tests	Validates very large object handling end to end

Format-specific test files

Use these pages when your test requires a structurally valid format or a deliberate failure case.

100MB PDF file

A valid one-page PDF with an embedded stream.

100MB MP4 file

A valid MP4 sample for video upload workflows.

1GB ZIP file

A valid ZIP Store archive containing one binary entry.

Corrupted sample files

Intentionally invalid files for negative and error-handling tests.

How to generate large test files yourself

Linux / macOS

dd if=/dev/urandom of=testfile.bin bs=1M count=100

Node.js

const fs = require('fs');
const crypto = require('crypto');
const fd = fs.openSync('testfile.bin', 'w');
const chunk = 1024 * 1024;
for (let written = 0; written < 100 * chunk; written += chunk) {
  fs.writeSync(fd, crypto.randomBytes(chunk));
}
fs.closeSync(fd);

Python

import os
with open('testfile.bin', 'wb') as f:
    for _ in range(100):
        f.write(os.urandom(1024 * 1024))  # 1MB chunk

PowerShell (Windows)

$out = [System.IO.File]::Create("testfile.bin")
$out.SetLength(100MB)
$out.Close()

How to test upload & download speed

Download speed

Download a test file and measure the time. Speed = File size / Time taken. Example: 100MB in 20 seconds = 5 MB/s = 40 Mbps.

Upload speed

Download a test file (e.g. test-100mb.bin)
Upload it to your cloud storage or test endpoint
Measure time: Size / Time = Upload speed

Using curl

curl -o /dev/null -w "Speed: %{speed_download} bytes/sec\n" https://cdn.truefilesize.com/test/test-100mb.bin

Frequently Asked Questions

What are these large test files made of?

The .bin files contain pseudo-random binary data. They have no readable content — just bytes. This is intentional: they are designed purely for testing file size handling, upload limits, and transfer performance.

How accurate are speed tests using these files?

These files are served from a global CDN, so they give a reasonable estimate. For precise ISP speed measurements, use speedtest.net. These files are best for testing your application's upload/download performance, not raw network speed.

Can I use these files to test my upload API?

Yes. Download any file and use it to test your upload endpoint. Common sizes: 10MB for quick tests, 100MB for standard stress tests, 1GB for large file handling validation.

Why do you offer files up to 10GB?

Some applications need to handle very large files — video platforms, cloud storage services, backup tools. Testing with 5GB and 10GB files helps verify your app handles edge cases like timeout, chunked upload, and progress tracking correctly.

Where can I find format-specific test files?

Use the dedicated PDF, MP4, and ZIP pages for structurally valid files. For parser failures and negative tests, use the intentionally corrupted sample-file collection.

Download Test Files: 1MB to 10GB

Which test file size should I use?

Format-specific test files

100MB PDF file

100MB MP4 file

1GB ZIP file

Corrupted sample files

How to generate large test files yourself

How to test upload & download speed

Download speed

Upload speed

Using curl

Frequently Asked Questions

Related reading

How to Handle Large File Uploads — Performance Guide

PDF Parsing and Text Extraction — A Practical Guide

Resumable Uploads with the tus Protocol